| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] not been [verb] [prep] [num] | 51 |
|
| 2 | [verb] not been [vb pp] [prep] [num] | 50 |
|
| 3 | [verb] not been see [prep] [num] | 8 |
|
| 4 | [verb] not been seen [prep] [num] | 8 |
|
